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Head-to-head · AI Email Assistants

MailMaestro vs Spike

  • Updated Oct 2026
  • Both researched from official sources
  • 7 checks side by side
Higher score MailMaestro #5 in AI Email Assistants 8.4/10 Free plan · 14-day trial Free planFree trial✓ 4 of 5 features Visit MailMaestro
Spike #8 in AI Email Assistants 7.9/10 Free plan Free plan✓ 0 of 5 features Visit Spike

MailMaestro leads on 0 checks, Spike on 1, and 6 are even. Who comes out ahead on the 7 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreMailMaestro · 8.4/10
  • Lowest starting priceSpike · $4/user/mo
  • Free planboth
  • Free trialonly MailMaestro
  • Most featuresMailMaestro · 4 of 5

MailMaestro scores higher on our rubric for ai email assistants: 8.4 against 7.9 out of 10; our editors rank them #5 and #8.

Spike is cheaper to start at $4/user/mo against $12/user/mo.

MailMaestro is the better fit for outlook and Gmail users wanting focused AI help. Spike is the better fit for low-cost email and calendar workspace.

  • MailMaestro fits best

    Outlook and Gmail users wanting focused AI help

  • Spike fits best

    Low-cost email and calendar workspace

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature MailMaestro 8.4/10 Visit ↗ Spike 7.9/10 Visit ↗
At a glance
Editor score 8.4 7.9
Ranking #5 in AI Email Assistants #8 in AI Email Assistants
Best for Outlook and Gmail users wanting focused AI help Low-cost email and calendar workspace
Pricing model Free plan + paid Free plan + paid
Starting price $12/seat/mo $4/user/mo (best)
Free plan ✓ ✓
Free trial 14 days —
Deployment Cloud, Browser extension Cloud, Desktop, Mobile
Platforms Web, Chrome extension Web, Windows, macOS, iOS, Android
Integrations 5 integrations 12 integrations
Features MailMaestro 4/5 · Spike 0/5
Inbox triage ✓ (best) Not checked yet
AI reply drafting ✓ (best) Not checked yet
Automatic sending — Not checked yet
Thread summaries ✓ (best) Not checked yet
Follow-up actions ✓ (best) Not checked yet
Specs
Email platforms Not checked yet Not checked yet
Our review
Pros
  • Drafts and improves messages using conversation context and tone controls
  • Summarizes email threads and attachments, with reminders and inbox triage
  • Connects with Outlook, Gmail, and their calendars for meeting responses
  • Chat-style threads and a unified inbox organize multiple email accounts.
  • AI drafting and conversation summaries are available on free plans.
  • Calendar tools, notes, tasks and calls sit alongside email.
Cons
  • Free plan limits compose, reply, and improve requests to three per week
  • Auto-send is not included
  • Enterprise features include custom integrations and data retention
  • The free Email App plan limits unified inbox use to one email address.
  • The $4 Team plan and $6 Pro plan serve different product offerings.
  • Video call recording and SAML-SSO are marked SOON on Business.
Our verdict

MailMaestro is an AI email assistant for professionals who want help composing, refining, and replying to messages, as well as organizing an inbox. It works with Microsoft Outlook and offers Gmail through a Chrome extension. Drafts can use…

Read the review →

Spike combines email, calendar tools and collaboration features in a chat-style workspace. It is aimed at individuals who want to manage existing email accounts in one app, as well as teams that need shared inboxes and team spaces. AI…

Read the review →
  1. MailMaestroAI Email Assistants 8.4Free plan · 14-day trial
  2. SpikeAI Email Assistants 7.9Free plan

Strengths and trade-offs

  • MailMaestro — where it wins

    • Drafts and improves messages using conversation context and tone controls
    • Summarizes email threads and attachments, with reminders and inbox triage
    • Connects with Outlook, Gmail, and their calendars for meeting responses

    Where it doesn't

    • Free plan limits compose, reply, and improve requests to three per week
    • Auto-send is not included
    • Enterprise features include custom integrations and data retention

  • Spike — where it wins

    • Chat-style threads and a unified inbox organize multiple email accounts.
    • AI drafting and conversation summaries are available on free plans.
    • Calendar tools, notes, tasks and calls sit alongside email.

    Where it doesn't

    • The free Email App plan limits unified inbox use to one email address.
    • The $4 Team plan and $6 Pro plan serve different product offerings.
    • Video call recording and SAML-SSO are marked SOON on Business.
  • MailMaestro8.4/10 · Free plan · 14-day trial

    Draft, refine, summarize, and organize email with AI across Outlook and Gmail.

    Visit MailMaestroFull verdict →
  • Spike7.9/10 · Free plan

    Spike brings AI email tools, calendar features and team collaboration into one workspace.

    Visit SpikeFull verdict →

More comparisons

All AI email assistants comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update